首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   106篇
  免费   13篇
  2023年   1篇
  2021年   1篇
  2020年   3篇
  2019年   6篇
  2018年   6篇
  2017年   9篇
  2016年   9篇
  2015年   3篇
  2014年   6篇
  2013年   38篇
  2011年   4篇
  2010年   2篇
  2009年   5篇
  2008年   3篇
  2007年   1篇
  2006年   2篇
  2005年   1篇
  2004年   1篇
  2003年   1篇
  2002年   2篇
  2001年   1篇
  2000年   2篇
  1998年   1篇
  1997年   1篇
  1995年   1篇
  1987年   1篇
  1984年   1篇
  1983年   1篇
  1979年   1篇
  1976年   2篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
排序方式: 共有119条查询结果,搜索用时 15 毫秒
61.
62.
63.
While Pakistan is in many ways an ideal location for transnational terrorist groups due to state weakness, Islamic State has had difficulty making headway in the country. In this article, the authors argue that Islamic State’s failures in Pakistan are due to competition from other groups. Drawing on the terrorist competition literature and interviews with Pakistani counterterrorism officials, the authors find that the presence of other groups in Pakistan meant there was little demand for what Islamic State offered. Islamic State relied on splinter groups and defectors for recruitment, which alienated mainstream groups and harmed the group’s capacity. Islamic State’s competition problems were exacerbated by its internationalist ideology, which was at odds with that of many groups in Pakistan, and allowed opposing groups to present themselves as reasonable alternatives to other actors. Despite Islamic State’s lack of success, it and its allies have still engaged in extreme violence in Pakistan as a result of attempts to outbid other groups. This article has implications for fighting terrorism in Pakistan and more generally.  相似文献   
64.
Moriori agroforestry practices led to the creation of forests dominated by an introduced tree, kōpi (Corynocarpus laevigatus). Kōpi trees produce an edible drupe which was essential to the successful settlement of Rēkohu (Chatham Island). It is also only on kōpi trees that Moriori created a unique art form, called rākau momori, marking the trees with anthropogenic, animal and abstract images. The remaining stands of old growth forest which include kōpi trees and rākau momori are in varying states of decline and until recently were not identified as a cultural landscape. The acknowledgement of the forests as cultural landscapes has resulted in changes to the conservation and management practices of these spaces. The current management practices have been designed following paleo-ethnobotanical research (palynology and anthracology), ethnography and archaeological excavations which suggest Moriori planted and managed the forests until they were abandoned following an invasion in 1835.  相似文献   
65.
Conference reviewed:
Justin Kenrick, A Forest of Papers CHAGS 9 (Ninth International Conference on Hunting and Gathering Societies), Edinburgh, 9–13 September 2002  相似文献   
66.
This article tests a model for the political economy of the Wari Empire (AD 600–1000) of Peru. This model divides the empire into core and periphery zones. In the core, Wari political economy was organized to extract surplus agricultural production to feed the capital. In the periphery, the Wari strove to extract prestige goods. We suggest that there is a strong relationship between where the empire chose to locate its centers in the periphery and the political complexity of the local population in which the center was placed. We argue that in areas of low political organization sites should be located near the geographic center of a population. These sites will tend to function as local administrative centers geared toward the organization and exploitation of the area's wealth potential. In areas with more complex political organization sites should be located on the margins of a population. These sites should have functioned as gateway centers controlling, or at least profiting from, interregional exchange. Our model was systematically tested through the use of Geographic Information Systems (GIS). The results suggest that much of the variability found in Wari site placement in the periphery can be explained by differences in local sociopolitical complexity.  相似文献   
67.
68.
69.
70.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号